Why do computers store more data than laptops?



Not silly reedo... short.

Here is the long answer. The drives with the most storage come in 3.5 inch sizes, not 2.5 inch. Even if you're comparing same storage limits as you did above (1 TB 2.5 and 3.5) they are more expensive to produce in the 2.5 in. size. So for the same money spent on a hard drive, you will get more storage in the 3.5 in. format

Also, PC's don't typically come with more than one drive. So the "desktops have more drive bays" is not the reason that desktops come with more storage than laptops.

Hope this clears things up
 
Generally speaking, laptops were never ment to handle large amounts of data or GPU/CPU intensive processes. Looking at "gaming laptops" from my oldschool perspective, its just extra cash for less experience.

However it seems theres a crowd moving towards tablets and laptops, but still wanting to play games, edit video etc. The market is just not really catering to this crowd, cause what they want is a complete machineshop worth of tools in a pocket knife and no matter what theyll just want the unit smaller and with longer battery life, once they get most of what they ask for. Also larger drives mostely demand more power.

Short answer> cause since you need to ask, your using your laptop wrong.

Long answer> because stationary computers can better house multiple and physically larger drives, while keeping it all at operating temperature, and not having to worry about sudden loss of power, short shutdown times, battery depletion etc.
 




Another thing you might be looking at is laptops with only a SSD (solid state drive) which are quite a bit more expensive per gigabyte than hard drives are and have less storage space than a 3.5 inch hard drive that manufacturers are producing now.
 
The question starts from a false premise: "Why do computers store more data than laptops?"

They don't, unless you want them to. They can, due to larger potential drive capacity.
But you can buy a 500GB desktop as easily as you can buy a 1TB laptop.